Drones are not toys, but tools to transform industries.
处理一个不自由的世界的唯一方法是变得如此绝对自由,以至于你的存在本身就是一种反叛。
We try to buy stocks selling at a discount from their asset value.
他一直太忙以至于无法生活,现在他太忙以至于无法死去。